• May 26, 2026 Nissan Silvia 180sx Sr20dedet Ca18engine os can provide more airflow, resulting in higher horsepower potential. For the SR20DET, popular turbo upgrades include Garrett GT28 or GT30 series, which can push power beyond 350 hp comfortably. For the CA18DET, upgrading to a larger ball-b By Pam Goodwin-Murray
